硅溶胶对氧漂中Fe3+的抑制作用

研究硅溶胶对双氧水漂白中Fe^3＋的抑制作用。在空白漂液中，硅溶胶可以抑制7．5mg／L的Fe^3＋对双氧水的催化作用；在棉织物退煮漂—浴工艺中，硅溶胶对3mg／L的Fe^3＋抑制作用比其它氧漂稳定剂好，而硬水中Ca^2＋的存在，可使硅溶胶更好地抑制Fe^3＋对双氧水的催化作用；漂后织物各项性能均优于使用其它稳定剂。

Preventing catalytic degradation by ferric ions in peroxide bleaching via silica sol

Inhibiting effect of silica sol to Fe~(3+) in peroxide bleaching solution is researched.It is found that silica sol can effectively prevent catalytic degradation of peroxide hydrogen by 7.5mg/L Fe~(3+) in control bleaching solution;in one bath desizing-scouring-bleaching process of cotton fabric,inhibiting result of silica sol to 3 mg/L Fe~(3+) is superior to other stabilizers.Silica sol has better effect aided with Ca~(2+) in hard water.As a stabilizer,silica sol can impart the fabric better mechanical properties than the others.